32 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.65 



only the tilted edge of the last turn projects. Postnuclear whorls 

 slightly rounded, narrowly shouldered at the summit, marked by 

 fine lines of growth and rather coarse spiral striations. Suture 

 slightly constricted. Peripliery of the last whorl rounded. Base 

 short, well rounded, somewhat inflated, narrowly umbilicated, and 

 marked like the spire. Aperture moderately long, oval; posterior 

 angle acute; outer lip thin at the edge, thick within; inner lip 

 strongly curved, with a strong fold opposite the umbilical chink; 

 parietal wall covered by a thin callus. 



Type.— Cat. No. 352620, U.S.N.M., has 6.5 postnuclear whorls and 

 measures : Length, 5.6 mm. ; diameter, 2.4 mm. 



An additional specimen is in the Oldroyd collection. 



This species suggests Odostomia {Evalea) youngi Dall and 

 Bartsch, but is distinguished from this at once by its more broadly 

 conic outline. 



ODOSTOMIA (EVALEA) MANCA, new species. 



Plate 1, fig. 5. 



Shell very elongate ovate, yellowish white. Nuclear whorls small, 

 deeply, obliquely immersed in the first of the postnuclear whorls, 

 above which only the tilted edge of the last volution projects. Post- 

 nuclear whorls slightly rounded, very narrowly shouldered at the 

 summit, marked by fine lines of groAvth and moderately strong spiral 

 striations. Suture slightly constricted. Periphery of the last whorl 

 slightly inflated, well rounded. Base short, well rounded, not um- 

 bilicated, marked like the spire. Aperture elongate oval; posterior 

 angle acute; outer lip thin; inner lip slightly curved, reflected, and 

 appressed for half its length to the base, provided with a strong fold 

 at its insertion; parietal wall covered by a moderately thick callus. 



Type.—Ciii. No. 352521, U.S.N.M., has 6 postnuclear whorls and 

 measures : Length, 5.5 mm ; diameter, 2.3 mm. 



Cat. No. 352522, U.S.N.M., contains 10 additional specimens from 

 the type locality, and there are 49 in the Oldroyd collection. 



The present species recalls Odostomia (Evalea) resina Dall and 

 Bartsch, which is fully four times as large. 



ODOSTOMIA (EVALEA) CIVITELLA. new species. 



Plate 2, fig. 7. 



Shell rather large, milk white. Nuclear whorls small, deeply im- 

 mersed in the first of the succeeding turns, above which tlie tilted 

 edge of the last volution alone projects. Postnuclear whorls moder- 

 ately well rounded, narrowly shouldered at the summit, marked by 

 numerous rather regular lines of growth and rather coarse spiral 

 striations, which cause the space between these striations to appear 



